Administrative Rules of Montana
Department 24 - LABOR AND INDUSTRY
Chapter 24.321 - WILDLAND URBAN INTERFACE FIRE MITIGATION
Subchapter 24.321.3 - Wildland Urban Interface Fire Mitigation
Rule 24.321.311 - ACCESSORY STRUCTURES

Universal Citation: MT Admin Rules 24.321.311

Current through Register Vol. 6, March 22, 2024

(1) An accessory structure without a complete exterior wall system enclosing the area under the roof or above the floor that is attached to buildings with habitable spaces and projections (e.g., decks), shall be a minimum of one-hour fire-resistance-rated construction, heavy timber construction, or constructed of one of the following:

(a) noncombustible materials;

(b) fire-retardant-treated wood labeled for exterior use; or

(c) ignition-resistant building materials.

(2) When an attached accessory structure is located so that any portion of the structure projects over a descending slope surface greater than ten percent, the area below the structure shall have all underfloor areas enclosed to within six inches of the ground, with exterior wall construction in accordance with ARM 24.321.308.

(3) If a structure is not located in a designated WUI, this rule does not apply.

50-60-901, MCA; IMP, 76-3-504, MCA;

Disclaimer: These regulations may not be the most recent version. Montana may have more current or accurate information. We make no warranties or guarantees about the accuracy, completeness, or adequacy of the information contained on this site or the information linked to on the state site. Please check official sources.
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.